Question

Predict the final temperature of 3.50 kg of water in a calorimeter if the water is at 27.5°C before 0.77 oz of noodles containing 81.0 kcal are burned

Answer 1

The final temperature of the water is determined as 50.55 ⁰C.

Final temperature of the water

The final temperature of the water is determined from the following calculations;

Q = mcΔθ

Δθ = Q/mc

where;

• Q is the amount of energy = 81 kcal = 338904 J
• c is specific heat capacity of water = 4,200 J/kgC

Δθ = 338904 /(3.5 x 4200)

Δθ = 23.05 °C

Final temperature = T₁ + Δθ

Final temperature = 27.5°C + 23.05 °C = 50.55 ⁰C.

Learn more about final temperature here: brainly.com/question/16559442

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